Double 13 is worse than normal 13, obviously. More mailbag. Forum: https://www.eevblog.com/forum/blog/eevblog-1313-bad-luck-mailbag/ SPOILERS: Back in the old lab! Vintage Soviet Union PC. 10:42 3G modem with a funky antenna. 13:52 IOMEGA ZIP drive teardown 18:56 USB to RS485 interface http://olegkutkov.me/ 19:52 Another Byte magazine cover! http://bytecovers.com/ 21:41 Smoke alarm sensor teardowns 26:58 Reverse engineering a ...